From 793504843edf9f6e3fd6f413938e55d2d7cc91ef Mon Sep 17 00:00:00 2001
From: John Luo <jt.luo@mail.utoronto.ca>
Date: Mon, 19 Oct 2015 15:11:02 -0700
Subject: [PATCH] reacting to telemetry rename

---
 .../Views/DetailsPage.cs                      | 18 ++++-
 .../Views/LogPage.cs                          | 48 ++++++++++--
 .../DeveloperExceptionPageMiddleware.cs       | 14 ++--
 .../Views/CompilationErrorPage.cs             | 24 +++++-
 .../DeveloperExceptionPage/Views/ErrorPage.cs | 42 ++++++++--
 .../ExceptionHandlerMiddleware.cs             | 15 ++--
 .../RuntimeInfo/Views/RuntimeInfoPage.cs      | 12 ++-
 .../WelcomePage/Views/WelcomePage.cs          | 78 +++++++++++++++----
 src/Microsoft.AspNet.Diagnostics/project.json |  2 +-
 .../DeveloperExceptionPageMiddlewareTest.cs   | 16 ++--
 .../ExceptionHandlerTest.cs                   | 12 +--
 ...yListener.cs => TestDiagnosticListener.cs} | 14 ++--
 .../project.json                              |  2 +-
 13 files changed, 226 insertions(+), 71 deletions(-)
 rename test/Microsoft.AspNet.Diagnostics.Tests/{TestTelemetryListener.cs => TestDiagnosticListener.cs} (84%)

diff --git a/src/Microsoft.AspNet.Diagnostics.Elm/Views/DetailsPage.cs b/src/Microsoft.AspNet.Diagnostics.Elm/Views/DetailsPage.cs
index 1a3a0cc5f2..7dc6369423 100644
--- a/src/Microsoft.AspNet.Diagnostics.Elm/Views/DetailsPage.cs
+++ b/src/Microsoft.AspNet.Diagnostics.Elm/Views/DetailsPage.cs
@@ -437,7 +437,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                    <option");
             BeginWriteAttribute("value", " value=\"", 7693, "\"", 7713, 1);
-            WriteAttributeValue("", 7701, severityInt, 7701, 12, false);
+#line 226 "DetailsPage.cshtml"
+WriteAttributeValue("", 7701, severityInt, 7701, 12, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" selected=\"selected\">");
 #line 226 "DetailsPage.cshtml"
@@ -456,7 +460,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                    <option");
             BeginWriteAttribute("value", " value=\"", 7842, "\"", 7862, 1);
-            WriteAttributeValue("", 7850, severityInt, 7850, 12, false);
+#line 230 "DetailsPage.cshtml"
+WriteAttributeValue("", 7850, severityInt, 7850, 12, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 230 "DetailsPage.cshtml"
@@ -474,7 +482,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("        </select>\r\n        <input type=\"text\" name=\"name\"");
             BeginWriteAttribute("value", " value=\"", 7975, "\"", 8008, 1);
-            WriteAttributeValue("", 7983, Model.Options.NamePrefix, 7983, 25, false);
+#line 234 "DetailsPage.cshtml"
+WriteAttributeValue("", 7983, Model.Options.NamePrefix, 7983, 25, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(@" />
         <input type=""submit"" value=""filter"" />
diff --git a/src/Microsoft.AspNet.Diagnostics.Elm/Views/LogPage.cs b/src/Microsoft.AspNet.Diagnostics.Elm/Views/LogPage.cs
index 3eb32dd274..9adf2cccb4 100644
--- a/src/Microsoft.AspNet.Diagnostics.Elm/Views/LogPage.cs
+++ b/src/Microsoft.AspNet.Diagnostics.Elm/Views/LogPage.cs
@@ -209,7 +209,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                    <option");
             BeginWriteAttribute("value", " value=\"", 4908, "\"", 4928, 1);
-            WriteAttributeValue("", 4916, severityInt, 4916, 12, false);
+#line 138 "LogPage.cshtml"
+WriteAttributeValue("", 4916, severityInt, 4916, 12, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" selected=\"selected\">");
 #line 138 "LogPage.cshtml"
@@ -228,7 +232,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                    <option");
             BeginWriteAttribute("value", " value=\"", 5057, "\"", 5077, 1);
-            WriteAttributeValue("", 5065, severityInt, 5065, 12, false);
+#line 142 "LogPage.cshtml"
+WriteAttributeValue("", 5065, severityInt, 5065, 12, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 142 "LogPage.cshtml"
@@ -246,7 +254,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("        </select>\r\n        <input type=\"text\" name=\"name\"");
             BeginWriteAttribute("value", " value=\"", 5190, "\"", 5223, 1);
-            WriteAttributeValue("", 5198, Model.Options.NamePrefix, 5198, 25, false);
+#line 146 "LogPage.cshtml"
+WriteAttributeValue("", 5198, Model.Options.NamePrefix, 5198, 25, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(@" />
         <input type=""submit"" value=""filter"" />
@@ -304,10 +316,18 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                        \t<td><a");
             BeginWriteAttribute("href", " href=\"", 6287, "\"", 6307, 1);
-            WriteAttributeValue("", 6294, activityPath, 6294, 13, false);
+#line 178 "LogPage.cshtml"
+WriteAttributeValue("", 6294, activityPath, 6294, 13, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 6308, "\"", 6339, 1);
-            WriteAttributeValue("", 6316, activity.HttpInfo.Path, 6316, 23, false);
+#line 178 "LogPage.cshtml"
+WriteAttributeValue("", 6316, activity.HttpInfo.Path, 6316, 23, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 178 "LogPage.cshtml"
@@ -344,10 +364,18 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                            <td colspan=\"4\"><a");
             BeginWriteAttribute("href", " href=\"", 6729, "\"", 6749, 1);
-            WriteAttributeValue("", 6736, activityPath, 6736, 13, false);
+#line 185 "LogPage.cshtml"
+WriteAttributeValue("", 6736, activityPath, 6736, 13, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 6750, "\"", 6778, 1);
-            WriteAttributeValue("", 6758, activity.Root.State, 6758, 20, false);
+#line 185 "LogPage.cshtml"
+WriteAttributeValue("", 6758, activity.Root.State, 6758, 20, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 185 "LogPage.cshtml"
@@ -366,7 +394,11 @@ using Microsoft.Extensions.Logging
 
             WriteLiteral("                            <td colspan=\"4\"><a");
             BeginWriteAttribute("href", " href=\"", 6941, "\"", 6961, 1);
-            WriteAttributeValue("", 6948, activityPath, 6948, 13, false);
+#line 189 "LogPage.cshtml"
+WriteAttributeValue("", 6948, activityPath, 6948, 13, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">Non-scope Log</a></td>\r\n");
 #line 190 "LogPage.cshtml"
diff --git a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/DeveloperExceptionPageMiddleware.cs b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/DeveloperExceptionPageMiddleware.cs
index 55e28f7dbb..547149a22a 100644
--- a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/DeveloperExceptionPageMiddleware.cs
+++ b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/DeveloperExceptionPageMiddleware.cs
@@ -5,7 +5,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
-using System.Diagnostics.Tracing;
+using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Linq;
@@ -17,6 +17,7 @@ using Microsoft.AspNet.Http;
 using Microsoft.Dnx.Compilation;
 using Microsoft.Dnx.Runtime;
 using Microsoft.Extensions.Logging;
+using StackFrame = Microsoft.AspNet.Diagnostics.Views.StackFrame;
 
 namespace Microsoft.AspNet.Diagnostics
 {
@@ -30,7 +31,7 @@ namespace Microsoft.AspNet.Diagnostics
         private static readonly bool IsMono = Type.GetType("Mono.Runtime") != null;
         private readonly ILogger _logger;
         private readonly IFileProvider _fileProvider;
-        private readonly TelemetrySource _telemetrySource;
+        private readonly DiagnosticSource _diagnosticSource;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="DeveloperExceptionPageMiddleware"/> class
@@ -42,7 +43,7 @@ namespace Microsoft.AspNet.Diagnostics
             ErrorPageOptions options,
             ILoggerFactory loggerFactory,
             IApplicationEnvironment appEnvironment,
-            TelemetrySource telemetrySource)
+            DiagnosticSource diagnosticSource)
         {
             if (next == null)
             {
@@ -58,7 +59,7 @@ namespace Microsoft.AspNet.Diagnostics
             _options = options;
             _logger = loggerFactory.CreateLogger<DeveloperExceptionPageMiddleware>();
             _fileProvider = options.FileProvider ?? new PhysicalFileProvider(appEnvironment.ApplicationBasePath);
-            _telemetrySource = telemetrySource;
+            _diagnosticSource = diagnosticSource;
         }
 
         /// <summary>
@@ -90,7 +91,10 @@ namespace Microsoft.AspNet.Diagnostics
 
                     await DisplayException(context, ex);
 
-                    _telemetrySource.WriteTelemetry("Microsoft.AspNet.Diagnostics.UnhandledException", new { httpContext = context, exception = ex });
+                    if (_diagnosticSource.IsEnabled("Microsoft.AspNet.Diagnostics.UnhandledException"))
+                    {
+                        _diagnosticSource.Write("Microsoft.AspNet.Diagnostics.UnhandledException", new { httpContext = context, exception = ex });
+                    }
 
                     return;
                 }
diff --git a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/CompilationErrorPage.cs b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/CompilationErrorPage.cs
index 4367f9bfb3..96f3f7e090 100644
--- a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/CompilationErrorPage.cs
+++ b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/CompilationErrorPage.cs
@@ -138,7 +138,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                    <li class=\"frame\"");
             BeginWriteAttribute("tabindex", " tabindex=\"", 1269, "\"", 1289, 1);
-            WriteAttributeValue("", 1280, tabIndex, 1280, 9, false);
+#line 41 "CompilationErrorPage.cshtml"
+WriteAttributeValue("", 1280, tabIndex, 1280, 9, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">\r\n");
 #line 42 "CompilationErrorPage.cshtml"
@@ -204,7 +208,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                                    <ol");
             BeginWriteAttribute("start", " start=\"", 1813, "\"", 1842, 1);
-            WriteAttributeValue("", 1821, frame.PreContextLine, 1821, 21, false);
+#line 53 "CompilationErrorPage.cshtml"
+WriteAttributeValue("", 1821, frame.PreContextLine, 1821, 21, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"collapsible\">\r\n");
 #line 54 "CompilationErrorPage.cshtml"
@@ -242,7 +250,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                                <ol");
             BeginWriteAttribute("start", " start=\"", 2223, "\"", 2242, 1);
-            WriteAttributeValue("", 2231, frame.Line, 2231, 11, false);
+#line 60 "CompilationErrorPage.cshtml"
+WriteAttributeValue("", 2231, frame.Line, 2231, 11, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"highlight\">\r\n");
 #line 61 "CompilationErrorPage.cshtml"
@@ -287,7 +299,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                                    <ol");
             BeginWriteAttribute("start", " start=\'", 2669, "\'", 2694, 1);
-            WriteAttributeValue("", 2677, frame.Line + 1, 2677, 17, false);
+#line 68 "CompilationErrorPage.cshtml"
+WriteAttributeValue("", 2677, frame.Line + 1, 2677, 17, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"collapsible\">\r\n");
 #line 69 "CompilationErrorPage.cshtml"
diff --git a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/ErrorPage.cs b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/ErrorPage.cs
index 0fcf12eba9..9f01074959 100644
--- a/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/ErrorPage.cs
+++ b/src/Microsoft.AspNet.Diagnostics/DeveloperExceptionPage/Views/ErrorPage.cs
@@ -70,7 +70,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("<!DOCTYPE html>\r\n<html");
             BeginWriteAttribute("lang", " lang=\"", 497, "\"", 558, 1);
-            WriteAttributeValue("", 504, CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 504, 54, false);
+#line 22 "ErrorPage.cshtml"
+WriteAttributeValue("", 504, CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 504, 54, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" xmlns=\"http://www.w3.org/1999/xhtml\">\r\n    <head>\r\n        <meta charset=\"utf-8\"" +
 " />\r\n        <title>");
@@ -153,7 +157,11 @@ using Microsoft.AspNet.Diagnostics
 #line hidden
             WriteLiteral(" in <code");
             BeginWriteAttribute("title", " title=\"", 1874, "\"", 1898, 1);
-            WriteAttributeValue("", 1882, firstFrame.File, 1882, 16, false);
+#line 49 "ErrorPage.cshtml"
+WriteAttributeValue("", 1882, firstFrame.File, 1882, 16, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 49 "ErrorPage.cshtml"
@@ -282,7 +290,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                            <li class=\"frame\"");
             BeginWriteAttribute("tabindex", " tabindex=\"", 3302, "\"", 3322, 1);
-            WriteAttributeValue("", 3313, tabIndex, 3313, 9, false);
+#line 85 "ErrorPage.cshtml"
+WriteAttributeValue("", 3313, tabIndex, 3313, 9, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">\r\n");
 #line 86 "ErrorPage.cshtml"
@@ -328,7 +340,11 @@ using Microsoft.AspNet.Diagnostics
 #line hidden
             WriteLiteral(" in <code");
             BeginWriteAttribute("title", " title=\"", 3717, "\"", 3736, 1);
-            WriteAttributeValue("", 3725, frame.File, 3725, 11, false);
+#line 93 "ErrorPage.cshtml"
+WriteAttributeValue("", 3725, frame.File, 3725, 11, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">");
 #line 93 "ErrorPage.cshtml"
@@ -373,7 +389,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                                            <ol");
             BeginWriteAttribute("start", " start=\"", 4167, "\"", 4196, 1);
-            WriteAttributeValue("", 4175, frame.PreContextLine, 4175, 21, false);
+#line 101 "ErrorPage.cshtml"
+WriteAttributeValue("", 4175, frame.PreContextLine, 4175, 21, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"collapsible\">\r\n");
 #line 102 "ErrorPage.cshtml"
@@ -411,7 +431,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("\r\n                                        <ol");
             BeginWriteAttribute("start", " start=\"", 4635, "\"", 4654, 1);
-            WriteAttributeValue("", 4643, frame.Line, 4643, 11, false);
+#line 109 "ErrorPage.cshtml"
+WriteAttributeValue("", 4643, frame.Line, 4643, 11, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"highlight\">\r\n");
 #line 110 "ErrorPage.cshtml"
@@ -456,7 +480,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("                                            <ol");
             BeginWriteAttribute("start", " start=\'", 5147, "\'", 5172, 1);
-            WriteAttributeValue("", 5155, frame.Line + 1, 5155, 17, false);
+#line 118 "ErrorPage.cshtml"
+WriteAttributeValue("", 5155, frame.Line + 1, 5155, 17, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" class=\"collapsible\">\r\n");
 #line 119 "ErrorPage.cshtml"
diff --git a/src/Microsoft.AspNet.Diagnostics/ExceptionHandler/ExceptionHandlerMiddleware.cs b/src/Microsoft.AspNet.Diagnostics/ExceptionHandler/ExceptionHandlerMiddleware.cs
index 3fd9c82f51..4c3d490215 100644
--- a/src/Microsoft.AspNet.Diagnostics/ExceptionHandler/ExceptionHandlerMiddleware.cs
+++ b/src/Microsoft.AspNet.Diagnostics/ExceptionHandler/ExceptionHandlerMiddleware.cs
@@ -2,7 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using System.Diagnostics.Tracing;
+using System.Diagnostics;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.Http;
@@ -18,13 +18,13 @@ namespace Microsoft.AspNet.Diagnostics
         private readonly ExceptionHandlerOptions _options;
         private readonly ILogger _logger;
         private readonly Func<object, Task> _clearCacheHeadersDelegate;
-        private readonly TelemetrySource _telemetrySource;
+        private readonly DiagnosticSource _diagnosticSource;
 
         public ExceptionHandlerMiddleware(
             RequestDelegate next, 
             ILoggerFactory loggerFactory, 
             ExceptionHandlerOptions options,
-            TelemetrySource telemetrySource)
+            DiagnosticSource diagnosticSource)
         {
             _next = next;
             _options = options;
@@ -34,7 +34,7 @@ namespace Microsoft.AspNet.Diagnostics
                 _options.ExceptionHandler = _next;
             }
             _clearCacheHeadersDelegate = ClearCacheHeaders;
-            _telemetrySource = telemetrySource;
+            _diagnosticSource = diagnosticSource;
         }
 
         public async Task Invoke(HttpContext context)
@@ -70,8 +70,11 @@ namespace Microsoft.AspNet.Diagnostics
                     context.Response.OnStarting(_clearCacheHeadersDelegate, context.Response);
 
                     await _options.ExceptionHandler(context);
-                    
-                    _telemetrySource.WriteTelemetry("Microsoft.AspNet.Diagnostics.HandledException", new { httpContext = context, exception = ex });
+
+                    if (_diagnosticSource.IsEnabled("Microsoft.AspNet.Diagnostics.HandledException"))
+                    {
+                        _diagnosticSource.Write("Microsoft.AspNet.Diagnostics.HandledException", new { httpContext = context, exception = ex });
+                    }
 
                     // TODO: Optional re-throw? We'll re-throw the original exception by default if the error handler throws.
                     return;
diff --git a/src/Microsoft.AspNet.Diagnostics/RuntimeInfo/Views/RuntimeInfoPage.cs b/src/Microsoft.AspNet.Diagnostics/RuntimeInfo/Views/RuntimeInfoPage.cs
index c80649b414..cb673756b2 100644
--- a/src/Microsoft.AspNet.Diagnostics/RuntimeInfo/Views/RuntimeInfoPage.cs
+++ b/src/Microsoft.AspNet.Diagnostics/RuntimeInfo/Views/RuntimeInfoPage.cs
@@ -68,7 +68,11 @@ using Microsoft.Dnx.Runtime;
 
             WriteLiteral("<!DOCTYPE html>\r\n<html");
             BeginWriteAttribute("lang", " lang=\"", 429, "\"", 490, 1);
-            WriteAttributeValue("", 436, CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 436, 54, false);
+#line 21 "RuntimeInfoPage.cshtml"
+WriteAttributeValue("", 436, CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 436, 54, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" xmlns=\"http://www.w3.org/1999/xhtml\">\r\n<head>\r\n    <meta charset=\"utf-8\" />\r\n   " +
 " <title>");
@@ -209,7 +213,11 @@ using Microsoft.Dnx.Runtime;
 
             WriteLiteral("                <tr");
             BeginWriteAttribute("class", " class=\"", 2209, "\"", 2237, 1);
-            WriteAttributeValue("", 2217, even?"even":"odd", 2217, 20, false);
+#line 58 "RuntimeInfoPage.cshtml"
+WriteAttributeValue("", 2217, even?"even":"odd", 2217, 20, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">\r\n                    <td>");
 #line 59 "RuntimeInfoPage.cshtml"
diff --git a/src/Microsoft.AspNet.Diagnostics/WelcomePage/Views/WelcomePage.cs b/src/Microsoft.AspNet.Diagnostics/WelcomePage/Views/WelcomePage.cs
index 601ac87a34..cdcfc8ef34 100644
--- a/src/Microsoft.AspNet.Diagnostics/WelcomePage/Views/WelcomePage.cs
+++ b/src/Microsoft.AspNet.Diagnostics/WelcomePage/Views/WelcomePage.cs
@@ -33,7 +33,11 @@ using Microsoft.AspNet.Diagnostics
 
             WriteLiteral("<!DOCTYPE html>\r\n<html");
             BeginWriteAttribute("lang", " lang=\"", 122, "\"", 204, 1);
-            WriteAttributeValue("", 129, System.Globalization.CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 129, 75, false);
+#line 7 "WelcomePage.cshtml"
+WriteAttributeValue("", 129, System.Globalization.CultureInfo.CurrentUICulture.TwoLetterISOLanguageName, 129, 75, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(">\r\n<head>\r\n    <meta charset=\"utf-8\" />\r\n    <title>");
 #line 10 "WelcomePage.cshtml"
@@ -133,10 +137,18 @@ using Microsoft.AspNet.Diagnostics
 "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHL0rwADANq3ok68n5UR" +
 "AAAAAElFTkSuQmCC\"");
             BeginWriteAttribute("alt", "\r\n                    alt=\"", 7499, "\"", 7567, 1);
-            WriteAttributeValue("", 7526, Resources.WelcomePageImageText_LightBulb, 7526, 41, false);
+#line 169 "WelcomePage.cshtml"
+WriteAttributeValue("", 7526, Resources.WelcomePageImageText_LightBulb, 7526, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 7568, "\"", 7617, 1);
-            WriteAttributeValue("", 7576, Resources.WelcomePageImageText_LightBulb, 7576, 41, false);
+#line 169 "WelcomePage.cshtml"
+WriteAttributeValue("", 7576, Resources.WelcomePageImageText_LightBulb, 7576, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"274\" height=\"274\" /></div>\r\n            <div class=\"browser\" style=\"opaci" +
 "ty: 1; visible: true;\">\r\n                <img src=\"data:image/png;base64,iVBORw0" +
@@ -253,10 +265,18 @@ using Microsoft.AspNet.Diagnostics
 "AAMALXokn/reOBeCwC/ij+HGLcwMAMFj+Kq73f3n0P6eP/nHj+k831tdf+F78z0n8uBI/znGuAAAGwbX" +
 "48c24+P9N+oP/L8AAx5G6SMzC+fMAAAAASUVORK5CYII=\"");
             BeginWriteAttribute("alt", "\r\n                     alt=\"", 16705, "\"", 16772, 1);
-            WriteAttributeValue("", 16733, Resources.WelcomePageImageText_Browser, 16733, 39, false);
+#line 172 "WelcomePage.cshtml"
+WriteAttributeValue("", 16733, Resources.WelcomePageImageText_Browser, 16733, 39, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 16773, "\"", 16820, 1);
-            WriteAttributeValue("", 16781, Resources.WelcomePageImageText_Browser, 16781, 39, false);
+#line 172 "WelcomePage.cshtml"
+WriteAttributeValue("", 16781, Resources.WelcomePageImageText_Browser, 16781, 39, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"384\" height=\"305\" /><div>:-)</div>\r\n            </div>\r\n            <div " +
 "class=\"light second\">\r\n                <img src=\"data:image/png;base64,iVBORw0KG" +
@@ -340,10 +360,18 @@ using Microsoft.AspNet.Diagnostics
 "EwaQ6SBSCCOBLOiclnX/70xJpl1t/ykOZHC57E/X+nnTbZ9EoEgC4DE044mHoCJ/F+AAQAgl3zNeDGxu" +
 "QAAAABJRU5ErkJggg==\"");
             BeginWriteAttribute("alt", "\r\n                    alt=\"", 23242, "\"", 23310, 1);
-            WriteAttributeValue("", 23269, Resources.WelcomePageImageText_LightBulb, 23269, 41, false);
+#line 176 "WelcomePage.cshtml"
+WriteAttributeValue("", 23269, Resources.WelcomePageImageText_LightBulb, 23269, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 23311, "\"", 23360, 1);
-            WriteAttributeValue("", 23319, Resources.WelcomePageImageText_LightBulb, 23319, 41, false);
+#line 176 "WelcomePage.cshtml"
+WriteAttributeValue("", 23319, Resources.WelcomePageImageText_LightBulb, 23319, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"274\" height=\"274\" /></div>\r\n            <div class=\"bulb\">\r\n             " +
 "   <img src=\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAVoAAAKSCAYAAACTAhMyA" +
@@ -445,10 +473,18 @@ using Microsoft.AspNet.Diagnostics
 "AIILYDQAiC0AEILgNACCC2A0AIgtABCCyC0AAgtgNACMCcvisIoACT0fwEGAL+BBlr+j4JHAAAAAElFT" +
 "kSuQmCC\"");
             BeginWriteAttribute("alt", "\r\n                     alt=\"", 31210, "\"", 31279, 1);
-            WriteAttributeValue("", 31238, Resources.WelcomePageImageText_LightBulb, 31238, 41, false);
+#line 179 "WelcomePage.cshtml"
+WriteAttributeValue("", 31238, Resources.WelcomePageImageText_LightBulb, 31238, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 31280, "\"", 31329, 1);
-            WriteAttributeValue("", 31288, Resources.WelcomePageImageText_LightBulb, 31288, 41, false);
+#line 179 "WelcomePage.cshtml"
+WriteAttributeValue("", 31288, Resources.WelcomePageImageText_LightBulb, 31288, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"346\" height=\"658\" /></div>\r\n            <div class=\"bottom\">\r\n           " +
 "     <img src=\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABLwAAADKCAYAAACv61n" +
@@ -637,10 +673,18 @@ using Microsoft.AspNet.Diagnostics
 "643H3SgNOZ3kR8AIAAAAAoIWjGV7UBrLAnc1h1wS8omp1OKzVxqxavihcX60FHHltZ8MF29a16fxojRS" +
 "uBwAAAACghf8vwABfcA5F9k0oGQAAAABJRU5ErkJggg==\"");
             BeginWriteAttribute("alt", "\r\n                    alt=\"", 46177, "\"", 46243, 1);
-            WriteAttributeValue("", 46204, Resources.WelcomePageImageText_Skyline, 46204, 39, false);
+#line 182 "WelcomePage.cshtml"
+WriteAttributeValue("", 46204, Resources.WelcomePageImageText_Skyline, 46204, 39, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 46244, "\"", 46291, 1);
-            WriteAttributeValue("", 46252, Resources.WelcomePageImageText_Skyline, 46252, 39, false);
+#line 182 "WelcomePage.cshtml"
+WriteAttributeValue("", 46252, Resources.WelcomePageImageText_Skyline, 46252, 39, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"1212\" height=\"202\" /></div>\r\n        </div>\r\n    </div>\r\n\r\n    <div class" +
 "=\"content\">\r\n        <div class=\"bodyHeadline\">");
@@ -694,10 +738,18 @@ using Microsoft.AspNet.Diagnostics
 "U1BLaYptsK4VktN9pRq0R9Y5/NMZL8slmC1ioSIu51ezNtkSACQ3HJckjXAX1v8nzsTxLwVBTT99OEiF" +
 "xkMsNIVpu/J6yjhBpEG5mhv7vI8l+AAQB7WiwH/DuungAAAABJRU5ErkJggg==\"");
             BeginWriteAttribute("alt", "\r\n                alt=\"", 49123, "\"", 49187, 1);
-            WriteAttributeValue("", 49146, Resources.WelcomePageImageText_LearnMore, 49146, 41, false);
+#line 191 "WelcomePage.cshtml"
+WriteAttributeValue("", 49146, Resources.WelcomePageImageText_LearnMore, 49146, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             BeginWriteAttribute("title", " title=\"", 49188, "\"", 49237, 1);
-            WriteAttributeValue("", 49196, Resources.WelcomePageImageText_LearnMore, 49196, 41, false);
+#line 191 "WelcomePage.cshtml"
+WriteAttributeValue("", 49196, Resources.WelcomePageImageText_LearnMore, 49196, 41, false);
+
+#line default
+#line hidden
             EndWriteAttribute();
             WriteLiteral(" width=\"58\" height=\"29\" /></div>\r\n        </a>\r\n    </div>\r\n\r\n</body>\r\n</html>\r\n");
         }
diff --git a/src/Microsoft.AspNet.Diagnostics/project.json b/src/Microsoft.AspNet.Diagnostics/project.json
index 5d54897a01..6eaaae3d63 100644
--- a/src/Microsoft.AspNet.Diagnostics/project.json
+++ b/src/Microsoft.AspNet.Diagnostics/project.json
@@ -14,7 +14,7 @@
         "Microsoft.Extensions.OptionsModel": "1.0.0-*",
         "Microsoft.Dnx.Compilation.Abstractions": "1.0.0-*",
         "Microsoft.Extensions.WebEncoders.Core": "1.0.0-*",
-        "System.Diagnostics.Tracing.Telemetry": "4.0.0-beta-*"
+        "System.Diagnostics.DiagnosticSource": "4.0.0-beta-*"
     },
     "frameworks": {
         "dnx451": {
diff --git a/test/Microsoft.AspNet.Diagnostics.Tests/DeveloperExceptionPageMiddlewareTest.cs b/test/Microsoft.AspNet.Diagnostics.Tests/DeveloperExceptionPageMiddlewareTest.cs
index b685c3c126..99de9d035e 100644
--- a/test/Microsoft.AspNet.Diagnostics.Tests/DeveloperExceptionPageMiddlewareTest.cs
+++ b/test/Microsoft.AspNet.Diagnostics.Tests/DeveloperExceptionPageMiddlewareTest.cs
@@ -3,7 +3,7 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Tracing;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -11,7 +11,6 @@ using System.Runtime.Versioning;
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Builder;
-using Microsoft.AspNet.Diagnostics.Views;
 using Microsoft.AspNet.FileProviders;
 using Microsoft.AspNet.TestHost;
 using Microsoft.AspNet.Testing;
@@ -20,6 +19,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Primitives;
 using Xunit;
+using StackFrame = Microsoft.AspNet.Diagnostics.Views.StackFrame;
 
 namespace Microsoft.AspNet.Diagnostics
 {
@@ -303,7 +303,7 @@ namespace Microsoft.AspNet.Diagnostics
                 errorPageOptions,
                 new LoggerFactory(),
                 new TestApplicationEnvironment(),
-                new TelemetryListener("Microsoft.Aspnet"));
+                new DiagnosticListener("Microsoft.Aspnet"));
 
             return middleware;
         }
@@ -478,21 +478,21 @@ namespace Microsoft.AspNet.Diagnostics
         }
 
         [Fact]
-        public async Task UnhandledErrorsWriteToDiagnosticTelemetryWhenUsingExceptionPage()
+        public async Task UnhandledErrorsWriteToDiagnosticWhenUsingExceptionPage()
         {
             // Arrange
-            TelemetryListener telemetryListener = null;
+            DiagnosticListener diagnosticListener = null;
             var server = TestServer.Create(app =>
             {
-                telemetryListener = app.ApplicationServices.GetRequiredService<TelemetryListener>();
+                diagnosticListener = app.ApplicationServices.GetRequiredService<DiagnosticListener>();
                 app.UseDeveloperExceptionPage();
                 app.Run(context =>
                 {
                     throw new Exception("Test exception");
                 });
             });
-            var listener = new TestTelemetryListener();
-            telemetryListener.SubscribeWithAdapter(listener);
+            var listener = new TestDiagnosticListener();
+            diagnosticListener.SubscribeWithAdapter(listener);
 
             // Act
             await server.CreateClient().GetAsync("/path");
diff --git a/test/Microsoft.AspNet.Diagnostics.Tests/ExceptionHandlerTest.cs b/test/Microsoft.AspNet.Diagnostics.Tests/ExceptionHandlerTest.cs
index 71efb76baa..a6b595c7be 100644
--- a/test/Microsoft.AspNet.Diagnostics.Tests/ExceptionHandlerTest.cs
+++ b/test/Microsoft.AspNet.Diagnostics.Tests/ExceptionHandlerTest.cs
@@ -3,7 +3,7 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Tracing;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Net;
@@ -325,14 +325,14 @@ namespace Microsoft.AspNet.Diagnostics
         }
 
         [Fact]
-        public async Task HandledErrorsWriteToDiagnosticTelemetryWhenUsingExceptionHandler()
+        public async Task HandledErrorsWriteToDiagnosticWhenUsingExceptionHandler()
         {
             // Arrange
-            TelemetryListener telemetryListener = null;
+            DiagnosticListener diagnosticListener = null;
 
             var server = TestServer.Create(app =>
             {
-                telemetryListener = app.ApplicationServices.GetRequiredService<TelemetryListener>();
+                diagnosticListener = app.ApplicationServices.GetRequiredService<DiagnosticListener>();
 
                 app.UseExceptionHandler("/handle-errors");
                 app.Map("/handle-errors", (innerAppBuilder) =>
@@ -348,8 +348,8 @@ namespace Microsoft.AspNet.Diagnostics
                 });
             });
 
-            var listener = new TestTelemetryListener();
-            telemetryListener.SubscribeWithAdapter(listener);
+            var listener = new TestDiagnosticListener();
+            diagnosticListener.SubscribeWithAdapter(listener);
 
             // Act
             await server.CreateClient().GetAsync(string.Empty);
diff --git a/test/Microsoft.AspNet.Diagnostics.Tests/TestTelemetryListener.cs b/test/Microsoft.AspNet.Diagnostics.Tests/TestDiagnosticListener.cs
similarity index 84%
rename from test/Microsoft.AspNet.Diagnostics.Tests/TestTelemetryListener.cs
rename to test/Microsoft.AspNet.Diagnostics.Tests/TestDiagnosticListener.cs
index e92f928d22..86be50ee15 100644
--- a/test/Microsoft.AspNet.Diagnostics.Tests/TestTelemetryListener.cs
+++ b/test/Microsoft.AspNet.Diagnostics.Tests/TestDiagnosticListener.cs
@@ -1,11 +1,11 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using Microsoft.Extensions.TelemetryAdapter;
+using Microsoft.Extensions.DiagnosticAdapter;
 
 namespace Microsoft.AspNet.Diagnostics
 {
-    public class TestTelemetryListener
+    public class TestDiagnosticListener
     {
         public class OnRequestEventData
         {
@@ -24,7 +24,7 @@ namespace Microsoft.AspNet.Diagnostics
         public OnExceptionEventData DiagnosticUnhandledException { get; set; }
         public OnExceptionEventData DiagnosticHandledException { get; set; }
 
-        [TelemetryName("Microsoft.AspNet.Hosting.BeginRequest")]
+        [DiagnosticName("Microsoft.AspNet.Hosting.BeginRequest")]
         public virtual void OnBeginRequest(IProxyHttpContext httpContext)
         {
             BeginRequest = new OnRequestEventData()
@@ -33,7 +33,7 @@ namespace Microsoft.AspNet.Diagnostics
             };
         }
 
-        [TelemetryName("Microsoft.AspNet.Hosting.EndRequest")]
+        [DiagnosticName("Microsoft.AspNet.Hosting.EndRequest")]
         public virtual void OnEndRequest(IProxyHttpContext httpContext)
         {
             EndRequest = new OnRequestEventData()
@@ -42,7 +42,7 @@ namespace Microsoft.AspNet.Diagnostics
             };
         }
 
-        [TelemetryName("Microsoft.AspNet.Hosting.UnhandledException")]
+        [DiagnosticName("Microsoft.AspNet.Hosting.UnhandledException")]
         public virtual void OnHostingUnhandledException(IProxyHttpContext httpContext, IProxyException exception)
         {
             HostingUnhandledException = new OnExceptionEventData()
@@ -52,7 +52,7 @@ namespace Microsoft.AspNet.Diagnostics
             };
         }
 
-        [TelemetryName("Microsoft.AspNet.Diagnostics.UnhandledException")]
+        [DiagnosticName("Microsoft.AspNet.Diagnostics.UnhandledException")]
         public virtual void OnDiagnosticUnhandledException(IProxyHttpContext httpContext, IProxyException exception)
         {
             DiagnosticUnhandledException = new OnExceptionEventData()
@@ -62,7 +62,7 @@ namespace Microsoft.AspNet.Diagnostics
             };
         }
 
-        [TelemetryName("Microsoft.AspNet.Diagnostics.HandledException")]
+        [DiagnosticName("Microsoft.AspNet.Diagnostics.HandledException")]
         public virtual void OnDiagnosticHandledException(IProxyHttpContext httpContext, IProxyException exception)
         {
             DiagnosticHandledException = new OnExceptionEventData()
diff --git a/test/Microsoft.AspNet.Diagnostics.Tests/project.json b/test/Microsoft.AspNet.Diagnostics.Tests/project.json
index 3d271bad22..f74fd0ebe5 100644
--- a/test/Microsoft.AspNet.Diagnostics.Tests/project.json
+++ b/test/Microsoft.AspNet.Diagnostics.Tests/project.json
@@ -8,7 +8,7 @@
         "Microsoft.AspNet.TestHost": "1.0.0-*",
         "Microsoft.AspNet.Testing": "1.0.0-*",
         "Microsoft.Extensions.DependencyInjection": "1.0.0-*",
-        "Microsoft.Extensions.TelemetryAdapter": "1.0.0-*",
+        "Microsoft.Extensions.DiagnosticAdapter": "1.0.0-*",
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
     },